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Chariot ride-sharing service promises to ease congestion in New York City

The Ford-owned Chariot ride-sharing service has just been launched in perhaps the busiest metropolis on earth – New York City. This promotional video for the latest city to witness the roll-out of the technology explains how it works, and reveals ambitions to fight congestion by getting more people out of private cars. But will it, in fact, just mean more vehicles on the roads?